Coming later in JDK 9: dropping support for javac -source/-target of 5/1.5 and older

[Joe Darcy]

Hello,

The change in question has been pushed to jdk9/dev:

     http://hg.openjdk.java.net/jdk9/dev/langtools/rev/fbfbefa43016

As of the next promoted build, jdk 9 b23, only source and target of 
6/1.6 and higher will be accepted by javac.

Regards,

-Joe

On 07/06/2014 12:06 PM, Joe Darcy wrote:
> Hello,
>
> FYI, the "later in JDK 9" point will be arriving soon as the fix for
>
>     JDK-8011044: Remove support for 1.5 and earlier source and target 
> options
>
> is nearing completion. Once this fix goes in, javac in JDK 9 will only 
> support source/target 6/1.6 and higher.
>
> Cheers,
>
> -Joe
>
> On 01/24/2014 02:49 PM, Joe Darcy wrote:
>> Hello,
>>
>> Preparatory work [1] has already occurred in JDK 9 for the 
>> implementation of
>>
>>     JEP 182: Policy for Retiring javac -source and -target Options
>>     http://openjdk.java.net/jeps/182
>>
>> in the release. According the policy described in this JEP, the javac 
>> in JDK 9 would only support -source and -target options in the set:
>>
>>     {6/1.6, 7/1.7, 8/1.8, 9/1.9}
>>
>> Consequently, -source/-target options like 5/1.5, 1.4, etc. will 
>> *not* be supported anymore. However, javac and related tools would 
>> still be able to recognize and process older classfiles.
>>
>> Regards,
>>
>> -Joe
>>
>> [1] 8031651: Remove unneeded -source and -target flags in jdk repo 
>> regression tests
>> http://hg.openjdk.java.net/jdk9/dev/jdk/rev/6744e0c2459f
>>
>> 8031745: Remove unneeded/obsolete -source/-target options in javac 
>> tests, part 1
>> http://hg.openjdk.java.net/jdk9/dev/langtools/rev/b49771a49320
>